website/nfs-server.md at 69b85807251ca855e7ca7bfcc55f1c6dfb68a708

Sherlock113 e49b9b8c0a Fix reference part title

Signed-off-by: Sherlock113 <sherlockxu@yunify.com>

2021-03-30 18:00:08 +08:00

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title	keywords	description	linkTitle	weight
Set up an NFS Server	Kubernetes, KubeSphere, NFS Server	How to set up an NFS Server	Set up an NFS Server	17410

KubeSphere supports NFS-client Provisioner as a storage plugin. In order to use it, you must configure the NFS server in advance. With the NFS server in place, an NFS client mounts a directory on the server machine so that files residing on the NFS server are accessible to the NFS client. Namely, you need to create and export a directory that your client machine can access.

Once your NFS server machine is ready, you can use KubeKey to install NFS-client Provisioner by Helm charts together with Kubernetes and KubeSphere. The exported directory of your NFS server must be provided in your Chart configurations used by KubeKey during installation.

You can also create the storage class of NFS-client after you install a KubeSphere cluster.

This tutorial demonstrates how to install the NFS server on Ubuntu 16.04 as an example.

Install and Configure an NFS Server

Step 1: Install the NFS kernel server

To set up your server machine, you must install the NFS kernel server on it.

Run the following command so that you will be using the latest package on Ubuntu for installation.
```
sudo apt-get update
```
Install the NFS kernel server.
```
sudo apt install nfs-kernel-server
```

Step 2: Create an export directory

Your NFS client will mount a directory on the server machine which has been exported by the NFS server.

Run the following command to specify a mount folder name (for example, /mnt/demo).
```
sudo mkdir -p /mnt/demo
```
For demonstration purposes, remove restrictive permissions of the folder so that all your clients can access the directory.
```
sudo chown nobody:nogroup /mnt/demo
```
```
sudo chmod 777 /mnt/demo
```

Step 3: Grant your client machine access to the NFS server

Run the following command:
```
sudo nano /etc/exports
```
Add your client information to the file.
```
/mnt/demo clientIP(rw,sync,no_subtree_check)
```
If you have multiple client machines, you can add them all in the file. Alternatively, specify a subnet in the file so that all the clients within it can access the NFS server. For example:
```
/mnt/demo 192.168.0.0/24(rw,sync,no_subtree_check)
```
{{< notice note >}}
- rw: Read and write operations. The client machine will have both read and write access to the volume.
- sync: Changes will be written to disk and memory.
- no_subtree_check: Prevent subtree checking. It disables the security verification required for a client to mount permitted subdirectories.
{{</ notice >}}
Save the file when you finish editing it.

Step 4: Apply the configuration

Run the following command to export your shared directory.
```
sudo exportfs -a
```

Restart the NFS kernel server.

sudo systemctl restart nfs-kernel-server

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